Make the most out of your Icathian Surprise.
Use Void Ooze to set up a perfect Living Artillery.
Kog'Maw can outrange most champions with his Bio-Arcane Barrage ability.
Karthus can cast spells for a short duration after he is killed. Move away from his corpse to be safe.
Make sure you always have enough health to survive Requiem, even if you have to go back to the base more frequently to heal.
The stat comparisons provided here feature some valuable Kog'Maw vs. Karthus counter stats that may help you grasp the distinctions between these two champs. As an example, Kog'Maw’s KDA ratio ([kills + assists] / deaths) of NaN is more than Karthus’s ratio of NaN, demonstrating that Kog'Maw may be more central to his team's team fighting potential than Karthus..
Kog'Maw usually has a similar longest kill spree as his enemy does. Commonly, he takes less damage than Karthus. This is usually reflective of differing health capacities; however, it can also imply that the one champ has less agility and thus is not able to escape further damage when poked or engaged.
Both League of Legends champs are great. Both have their strengths, weaknesses, and counters. In the game's current meta, Kog'Maw usually wins when trying to fight Karthus, with a 56.5% win rate. Thus, Kog'Maw makes a fantastic counter for Karthus.
While Kog'Maw does have a much higher win rate compared to Karthus, when on opposite teams, Kog'Maw also has a lower learning curve that makes him a less complex character to learn and master. You should be be fine when picking Kog'Maw into Karthus.
Moreover, Kog'Maw also has only a small amount of CC and other utility, a similar amount to Karthus. This often makes her just as valuable during team fights, especially when fighting champions with a lot of burst damage.
While there is not a single best champion overall in League of Legends, in Kog'Maw vs Karthus matchups, Kog'Maw is the better champ with a noticably higher win rate, less champion complexity, and a similar amount of utility to help out your allies during teamfights.
Kog'Maw is a great counter for Karthus. Make sure you focus your tactics on keeping up your CS and destroying objectives. If you are able to do that, you should be able to stand on your own as Kog'Maw against Karthus.
If you would like to truly master Kog'Maw in order to counter Karthus during both the early game and mid / late game phases of League of Legends, you should continue reading to learn a few extra tricks and insights into this matchup. If you mind the build and suggestions displayed above, you will increase your win rate by a lot and be closer to League of Legends pro players.
Kog'Maw most often racks up more CS relative to Karthus. Champs who on average don't get many minion kills often don't require much CS to be effective, such as supports. These kinds of champions are able to scale properly off of their skills, stats, and first items alone. Yet, champions with a lot of CS, such as hyper-carries, typically require a lot of items to be effective. In either situation, try to surpass the values reported here to do well.
The top items to have in your Kog'Maw versus Karthus build include Guinsoo's Rageblade, Runaan's Hurricane, and Wit's End. When Kog'Maw used at least these three pieces in his build, he performed significantly better when facing Karthus than with most other typical counter builds. In fact, Kog'Maw boasted an average winrate of 56.5% when countering Karthus with this build.
To have the best probability of vanquishing Karthus as Kog'Maw, Kog'Maw players should use the Lethal Tempo, Triumph, Legend: Bloodline, Last Stand, Conditioning, and Overgrowth runes from the Precision and Resolve rune sets. Out of all the runes players chose for Kog'Maw vs Karthus counter picks, this combination of runes yielded the best win rate. Notably, these runes averaged a 56.5% win rate overall.
By default, tips, stats, and builds on how to beat Karthus as Kog'Maw are shown for all ranked divisions. If you would like to filter the statistics and builds to a specific division, you should use the selection menu located above.